Hair drug testing: Many street drugs (or their breakdown products in the body) are absorbed into the hair. A sample of hair can be tested for recent drug use. Hair analysis: Testing of hair for toxic exposures, such as lead or mercury poisoning.
Gas Water Heater, water not hot enough-Thermostat or Sediment. The dip tube probably disintigrated. The dip tub sends cold water to the bottom of the tank for heating when its heated it rises to the top of the tank. Its possible that the dip tube broke of and now you have cold water mixing with the hot water on top.
This will prevent the pilot light from heating it. This will cause the thermocouple to turn off the supply of gas, and then your water heater wonât light. To avoid your water heater going out, bend the thermocouple so it is closer to the pilot light. Dirty pilot tube: Sometimes, your gas water heater wonât light due to a dirty pilot tube.